Stapler



FIG. 1 is a bottom and side perspective view of a stapler, showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a side elevational view thereof, taken from the side opposite to that shown in FIG. 2;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is an end elevational view thereof, taken from the left of FIG. 2; and,

FIG. 7 is an end elevational view thereof, taken from the right of FIG. 2. 

The ornamental design for a stapler, as shown and described. 